MESON Chess Problem Database

Problem Display
PID: 119065 (8/4K3/8/3pk3/1R1p3R/8/4PP2/8 w - - 0 1)

White, Alain Campbell

More White Rooks, 1911

8/4K3/8/3pk3/1R1p3R/8/4PP2/8

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Rh5#
  • Tries
    • 1.Ra4?
      • 1...d3
        • 2.Rh5#
      • 1...Kf5!
    • 1.Rg4?
      • 1...d3
        • 2.Rg5#
      • 1...Kf5!
    • 1.Rh5+?
      • 1...Kf4
        • 2.Rxd4#
      • 1...Ke4!
    • 1.e3?
      • 1...dxe3
        • 2.Rh5#
      • 1...d3
        • 2.Rh5#
      • 1...Kf5!
    • 1.f3?
      • 1...d3
        • 2.Rh5#
      • 1...Kf5!
  • Keys
    • 1.e4!
      • 1...dxe4
        • 2.Rb5#
      • 1...dxe4 ep
        • 2.Rh5#
      • 1...d3
        • 2.f4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);::R(D)
  • Tries
    • Try
      • R(C);
      • Vars
        • P(a);::R(D)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(D);
      • Vars
        • P(a);::R(D)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(c);P_SPINP(a),S_FLIGHT::R(C),XP(a)
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(a)
    • Try
      • P(A);
      • Vars
        • P(a);XP(A)::R(D)
        • P(a);::R(D)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • P(B);
      • Vars
        • P(a);::R(D)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • P(A);
    • Vars
      • P(b);OGATEB,XP(A)::R(C)
      • P(a);EP,XP(A)::R(D)
      • P(a);::P(B)
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